git push fails but works fine with "git push"

**Describe the bug**
I was trying to push and it fails says it can't find the URL to the git server. If I just go to my terminal and do a "git push" it works fine.

**To Reproduce**
Steps to reproduce the behavior:
1. My git server is working through a vpn so I imagine you would need to first set up a vpn to test gitui is able to push normally.
2. open gitui and do a git push
3. See error

**Expected behavior**
It should use the same functionality as a normal "git push" to avoid having to set things up in another way.

**Context (please complete the following information):**
- Latest gitui from Arch repos version 0.25.1

Start by reproducing the failure with gitui 0.25.1 while the Git server is reachable through a VPN, then compare it with a successful terminal `git push`. Investigate why gitui cannot find the server URL; done means pushing through gitui works using the same setup as the normal Git command.

Written by the indexing model from the issue text.